X402/REGISTERas of 07-21 10:47 UTC
A

blockmachine.io

91.0 / 100 · rank 1105 of 1511
last 120 hours · short tick = valid 402 · full tick = invalid or no answer · faint = not probed
score components (0-100) · not the raw measurements below
Availability90
Latency100
Price integrity90
Protocol100
Consistency75
Availability is the one component that is a success rate, so it alone carries an evidence discount: it enters as the 95% Wilson lower bound of the measured share (cubed), which is why its bar reads below the raw percentage above — thin evidence scores below a long proven record. Latency, price, protocol and consistency are direct measurements, shown as-is.
Availability (valid 402 returned)99.4% of 160 probes
Median 402 handshake247ms
p90 handshake313ms
Catalog price (advertised)$25.1616
Live price (median demanded)$25.513
Price statusdynamic
Protocolx402 v2
Category (our classification)data-intel
Payment receiver0x5138…C14D · stable since Jul 12
On-chain settlement⚠ settles on Polkadot; we index Base and Solana only, so settlement is not corroborated for this service
Second vantageconfirmed 402 from a second network path (Cloudflare edge), 4h ago
Discovery (.well-known/x402)not found
Catalog volume (their metric)3 calls/30d

event log (from our catalog snapshots and probes)

2026-07-21 10:08price changed $25.1744 → $24.9241
2026-07-21 09:13price changed $25.1019 → $25.1744
2026-07-21 08:41price changed $25.3527 → $25.1019
2026-07-21 07:38price changed $25.419 → $25.3527
2026-07-21 06:12price changed $25.5702 → $25.419
2026-07-21 05:41price changed $25.7154 → $25.5702
2026-07-21 04:34price changed $25.7013 → $25.7154
2026-07-21 03:35price changed $25.8479 → $25.7013
Seller-provided description · unverified · not part of the rating

Buy a blockmachine API key with Request Unit (RU) credit. blockmachine is decentralized multi-chain RPC infrastructure on Bittensor Subnet 19 - one key authenticates across supported chain RPC endpoints (Bittensor and Ethereum), spending from a single …

dynamic-pricing

Embed this grade (free, always current)
x402 register grade A
<a href="https://x402register.com/s/blockmachine.io.html"><img src="https://x402register.com/badge/blockmachine.io.svg" alt="x402 register grade A"></a>

What this grade does and doesn't measure: it scores the paid-request handshake — whether the service returns a spec-valid 402 payment challenge, how fast, and whether its price is honest. We do not pay these endpoints yet, so we do not verify that the paid response returns correct or complete content. Availability is a probe success rate measured hourly, corroborated by a second network path for this service.

Operator of blockmachine.io? Dispute this rating. Scores are opinions based on automated measurements at the stated times.